I have the same problem, but my DX58SO ta worse, n can update or make any modification, always in default or downgrade anymore. I'm desperate. watchdog has something to do with it? detail until I changed the battery
i'm also with this damn problem
Please bear in mind that this product will be reaching its End of Interactive Support at the end of June,2013 so Intel will no longer provide interactive support for this product via telephone, chat or e-mail, and no further drivers or BIOS updates would be released. For more information please check this article:
In this case, you may need to use an older version of the BIOS if you are having Wake on LAN issues.
Previous BIOS and drivers are posted at:
Still, be sure that I will forward this information for any further consideration.